Home / 19,628.26-29,431.21-13,395.82

Finding the Fourth Proportional to 19,628.26, 29,431.21 and 13,395.82

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Solution

The fourth proportional to 19,628.26, 29,431.21 and 13,395.82 is: 20,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.26 : 29,431.21 = 13,395.82 : x
  2. Step 2: Convert to fraction form
    19,628.26/29,431.21 = 13,395.82/x
  3. Step 3: Cross multiply
    19,628.26x = 29,431.21 × 13,395.82
  4. Step 4: Simplify right side
    19,628.26x = 394,255,084.47
  5. Step 5: Solve for x
    x = 394,255,084.47/19,628.26
  6. Step 6: Final answer
    x = 20,086.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.